993 resultados para QW 504 S562i


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El acelerado avance de la inmunología ha generado el desarrollo de técnicas que permiten resultados más precisos y de métodos de separación, tanto de componentes celulares como humorales, útiles en el diagnóstico. La presente edición tiene como objetivo proveer las herramientas necesarias para entender estos avances, junto con los mecanismos implicados en el desarrollo de algunas técnicas de diagnóstico inmunológico e interpretación clínica. Entre los temas tratados se encuentra el estudio de la estructura y fisiología de Toxoplasma gondii, que sirve de modelo para la elaboración de péptidos sintéticos de proteínas inmunogénicas y, además, puede ser aplicado en el desarrollo de métodos de diagnóstico en otros parásitos de importancia clínica. El presente manual ha sido elaborado con el fin de proporcionar una ayuda en el desarrollo de prácticas de laboratorio en inmunología y está dirigido, principalmente, a estudiantes universitarios y trabajadores de las diferentes áreas de la salud como medicina, bacteriología, biología y química.

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We have studied the optical properties of a series of InGaN/AlInGaN 10-period multiple quantum wells (MQW) with differing well thickness grown by metal-organic vapor-phase epitaxy that emit at around 380 nm. The aim of this investigation was to optimise the room temperature internal quantum efficiency, thus the quantum well (QW) thicknesses were accordingly chosen so that the overlap of the electron/hole wave function was maximised. At low temperature, we observed a reduction of the photo luminescence decay time with decreasing well width in line with the theoretical predictions. For a structure with well thicknesses of 1.5 nm, we measured a photoluminescence internal quantum efficiency of 67% at room temperature with a peak emission wavelength of 382 nm. (c) 2006 Elsevier B.V. All rights reserved.

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Consultoria Legislativa - Área I - Direito Constitucional, Eleitoral, Municipal, Direito Administrativo, Processo Legislativo e Poder Judiciário.

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A description of the cyanobacteriae Anabaena circinalis Rabenhorst and Anabaena flos aquae Brebisson, ex Bornet et Flanault is given. Illustrations are included.

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Quantum well intermixing is a key technique for photonic integration. The intermixing of InP/InGaAs/InGaAsP material involving the deposition of a layer of sputtered SiO2 on the semiconductor surface, followed by thermal annealing has allowed good control of the intermixing process and has been used to fabricate extended cavity lasers. This will be used for optimization of the performance of optical switches consisting of passive components, modulators and amplifiers.

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Single point defect microcavity possesses only the degenerate dipole modes under certain photonic crystal structure parameters. By deforming lattice structure, the degeneracy of the dipole modes has been broken. Theoretical simulation shows the large splitting of 65nm between the splitted x-mode and y-mode, approximate to the luminescent gain spectrum, which benefits for the single mode lasing. Experimentally the single dipole mode lasing, y-mode, is achieved in the deformed microcavity.

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Briefwechsel und Beilagen zwischen Max Horkheimer, Theodor W. Adorno und Gretel Adorno, 1942 - 1944; 1 Brief von Friedrich Pollock an Theodor W. Adorno, 1942; 1 Brief von Theodor W. Adorno an Friedrich Pollock, 1944; 1 Brief von Else Frenkel-Brunswick an Theodor W. Adorno, 1944; 1 Brief von Max Horkheimer an das American Jewish Commitee, 1944; Briefwechsel und Beilagen zwischen Gretel Adorno, Theodor W. Adorno und Frederick Wild, 1942 - 1944; 1 Brief von Gretel Adorno an Leo Löwenthal, 1944; 1 Brief von Monroe E. Deutsch an Theodor W. Adorno, 1944; Briefwechsel zwischen Theodor W. Adorno und Margot von Mendelssohn, 1942 - 1943; 1 Brief von der Bank of America in Los Angeles an Frederick Wild, 1942;

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Frankfurter Latern: Produktion, Franz Schreiber, Marie Geisselbrecht

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Vorbesitzer: Stadtarchiv Frankfurt am Main